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11-217
RF2945
Rev A10 000919
11
Parameter
Specification
Unit
Condition
Min.
Typ.
Max.
LNA
Voltage Gain
23
dB
433MHz
16
dB
915MHz
Noise Figure
4.8
dB
433MHz
5.5
dB
915MHz
Input IP3
-27
dBm
433MHz
-20
dBm
915MHz
Input P1dB
-37
dBm
433MHz
-30
dBm
915MHz
Antenna Port Impedance
50
Ω
RX ENABL= “1”, TX ENABL= “0”
Antenna Port VSWR
1.5:1
RX Mode
Output Impedance
Open Collector
Ω
433MHz and 915MHz
Mixer
Single-ended configuration
Conversion Voltage Gain
8
dB
433MHz
7
dB
915MHz
Noise Figure (SSB)
10
dB
433MHz
17
dB
915MHz
Input IP3
-21
dBm
433MHz
-17
dBm
915MHz
Input P1dB
-31
dBm
433MHz
-28
dBm
915MHz
First IF Section
IF Frequency Range
0.1
10.7
25
MHz
Voltage Gain
34
dB
IF= 10.7MHz, ZL=330Ω
Noise Figure
13
dB
IF1 Input Impedance
330
Ω
IF1 Output Impedance
330
Ω
Second IF Section
IF Frequency Range
0.1
10.7
25
MHz
Voltage Gain
60
dB
IF= 10.7MHz
IF2 Input Impedance
330
Ω
IF2 Output Impedance
1
k
Ω
At IF2 OUT pin
Demod Input Impedance
10
k
Ω
Data Output Bandwidth
1.4
MHz
3dB Bandwidth, ZLOAD=1MΩ || 3pF
Data Output Level
0.3
VCC-0.3
V
ZLOAD=1MΩ || 3pF. Output voltage is pro-
portional with the instantaneous frequency
deviation.
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